Board index FlightGear Development Spaceflight

Vostok-1

Discussion about development and usage of spacecraft

Vostok-1

Postby Thorsten » Wed May 11, 2016 2:25 pm

Since Vitos has confirmed a few times that he has no interest in maintaining the craft on FGAddon he has created, and since no one else has stepped up, I have done some necessary (and some desirable) maintenance work for Vostok-1.

* fixed one bug preventing engine ignition on the pad
* fixed another bug leading to an integrator windup and loss of control just after liftoff
(these must have been caused by FG/JSBSim changes in recent times)
* added thruster flame effects to all main engines and the orbital maneuvering thrusters, including plume widening in vacuum
* de-activated the originally forseen JSBSim support calculations for the thruster exhausts
* removed legacy features (altitude limit to 150 km, 'fake' Earth visible in vzor)
(original artwork and code is still on the repository, just commented out)

Our Russian spacecraft flies now rather well into orbit, and due to the different staging concept, the launch dynamics is very different from the Shuttle, so it's interesting to compare.

Pitching down after coming out of the atmosphere, first stage boosters and second stage burning:

Image

Only second stage left, protective cover blown off:

Image

Third stage ignition, slow crawl to orbital speed:

Image

The TDU in orbit:

Image

Detail view of the TDU - Vitos has put an insane level of detail in here, dependent on what your graphics card can do, that may be good or bad:

Image

Support module dropped, ready to enter the atmosphere (no piloting from this point, you're just along for the ride and may expect a crushing g-load):

Image

If anyone wants to delve into details (like refine the color of thruster exhausts, fix some quirks in the thruster control,... ) please feel free to get in touch, I don't think I'll have the time to do it, and I suppose most of the documentation would also be in Russian...)
Thorsten
 
Posts: 10972
Joined: Mon Nov 02, 2009 8:33 am

Re: Vostok-1

Postby Octal450 » Wed May 11, 2016 4:18 pm

Pretty cool.
Octal450
 
Posts: 4389
Joined: Tue Oct 06, 2015 12:51 pm

Re: Vostok-1

Postby wlbragg » Wed May 11, 2016 4:43 pm

Cool!

Is it just the particular lighting or do the first stage rockets and assemblies look kind of washed out? It looks odd to me. The satellite itself looks vivid and really nice.
Kansas(2-27-15)/Ohio/Midwest scenery development.
KEQA (2-27-15), 3AU, KRCP Airport Layout
User avatar
wlbragg
 
Posts: 4886
Joined: Sat Aug 25, 2012 11:31 pm
Location: Kansas (Tornado Alley), USA
Callsign: WC2020
Version: next
OS: Win10/Debain/nVGT640

Re: Vostok-1

Postby bugman » Wed May 11, 2016 4:46 pm

This is quite cool. I noticed a few of these problems when fixing the stereo sounds. The new flame effect looks good. As for the appearance, could it be that there are simply no textures?

Regards,
Edward
bugman
Moderator
 
Posts: 1700
Joined: Thu Mar 19, 2015 9:01 am
Version: next

Re: Vostok-1

Postby Hooray » Wed May 11, 2016 4:50 pm

indeed, very cool - and a totally crazy level of detail; we really need more 3D modelers with OCD :D
Please don't send support requests by PM, instead post your questions on the forum so that all users can contribute and benefit
Thanks & all the best,
Hooray
Help write next month's newsletter !
pui2canvas | MapStructure | Canvas Development | Programming resources
Hooray
 
Posts: 11329
Joined: Tue Mar 25, 2008 8:40 am

Re: Vostok-1

Postby Thorsten » Wed May 11, 2016 5:14 pm

As for the appearance, could it be that there are simply no textures?


It's how Vitos does his models - no or very low-contrast textures, and all the details come from the mesh. In addition, the lighting is very soft for space, because unlike for the Shuttle, this isn't rendered with a dedicated space effect (yet?). This contributes to the low overall contrast.

The better TDU appearance comes from many different parts, all in different colors.
Thorsten
 
Posts: 10972
Joined: Mon Nov 02, 2009 8:33 am

Re: Vostok-1

Postby bugman » Wed May 11, 2016 5:27 pm

The lighting is also a problem on the ground. And the Vostok text (~BOCTOK) is missing from the textures:

Image

Regards,
Edward
bugman
Moderator
 
Posts: 1700
Joined: Thu Mar 19, 2015 9:01 am
Version: next

Re: Vostok-1

Postby Thorsten » Wed May 11, 2016 5:58 pm

Ah... good catch. There's a very odd ambient material used in the 3d model.
Thorsten
 
Posts: 10972
Joined: Mon Nov 02, 2009 8:33 am

Re: Vostok-1

Postby wkitty42 » Wed May 11, 2016 7:24 pm

now that you've done the SRBs on the shuttle, doing the first stage separation and creating the Star of Korolev should be pretty easy to do... that's always been a beautiful sight to see...
"You get more air close to the ground," said Angalo. "I read that in a book. You get lots of air low down, and not much when you go up."
"Why not?" said Gurder.
"Dunno. It's frightened of heights, I guess."
User avatar
wkitty42
 
Posts: 5644
Joined: Fri Feb 20, 2015 3:46 pm
Location: central NC, USA
Callsign: wk42
Version: git next
OS: Kubuntu 14.04.5

Re: Vostok-1

Postby Thorsten » Thu May 12, 2016 4:33 am

now that you've done the SRBs on the shuttle, doing the first stage separation and creating the Star of Korolev should be pretty easy to do..


If only... I spent more than a week working out the geometry and forces for the Shuttle, and it's pretty much at the limit of the submodel code - I believe Vostok separates the 1st stage at higher altitude and velocity - so there's no reason this should even work by the same means.

Animating stage separation properly is lots of fiddling around...
Thorsten
 
Posts: 10972
Joined: Mon Nov 02, 2009 8:33 am

Re: Vostok-1

Postby bugman » Thu May 12, 2016 6:53 am

Thanks Thorsten, it looks much better after the r1813 fix!

Cheers,
Edward
bugman
Moderator
 
Posts: 1700
Joined: Thu Mar 19, 2015 9:01 am
Version: next


Return to Spaceflight

Who is online

Users browsing this forum: No registered users and 15 guests

cron